Reactive monoazo dyestuffs and the processes in which they are produced
AssigneeClariant Finance (BVI) Limited
InventorFriedrich Lehr
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Abstract
The invention relates to reactive-group-containing monoazo dyestuffs of formula (I), their salts or mixtures thereof, wherein R.sub.1 signifies hydrogen, methyl, methoxy or ethoxy, R.sub.2 signifies hydrogen, methyl, NHCONH.sub.2 or NHCOCH.sub.3, RG signifies (a), (b) or (c), X signifies hydrogen or chlorine, Z signify a group --CH=CH.sub.2, --CH.sub.2 CH.sub.2 W or mixtures thereof wherein W is a leaving group removable by alkali and --SO.sub.2 --Z may be bonded in a meta- or para-position with respect to the azo group. These compounds are useful as reactive dyestuffs in printing or dyeing hydroxy-group-containing or nitrogen-containing organic substrates.
Claims16
A dyestuff according to the formula (I) ##STR22## or a salt or a mixture thereof, wherein R.sub.1 signifies hydrogen, methyl, methoxy or ethoxy
- R.sub.2 signifies hydrogen, methyl, NHCONH.sub.2 or NHCOCH.sub.3
- RG signifies ##STR23## X signifies hydrogen, Z signifies a group --CH=CH.sub.2, --CH.sub.2 CH.sub.2 W or mixtures thereof wherein W is a leaving group removable by alkali, and --SO.sub.2 --Z may be bonded in a meta- or para- position with respect to the azo group when RG is of formula (ii) or formula (iii).
Process for the production of a compound of formula I, comprising the step of reacting a compound of formula II ##STR32## with a compound selected from ##STR33## wherein R.sub.1 signifies hydrogen, methyl, methoxy or ethoxy
- R.sub.2 signifies hydrogen, methyl, NHCONH, or NHCOCH3
- X signifies hydrogen. Z signifies a group --CH=CH.sub.2, --CH.sub.2 CH.sub.2 W or mixtures thereof wherein W is a leaving group removable by alkali, and --SO.sub.2 --Z may be bonded in a meta- or para- position with respect to the azo group when RG is of formula (ii? or formula (iii).
A process for the production of a compound of formula I ##STR34## or a salt or mixture thereof, wherein
- R.sub.1 signifies hydrogen, methyl, methoxy or ethoxy
- R.sub.2 signifies hydrogen, methyl, NHCONH.sub.2 or NHCOCH.sub.3
- RG signifies ##STR35## comprising:
- reacting a compound of the formula ##STR36## wherein R.sub.1 signifies hydrogen, methyl, methoxy or ethoxy
- R.sub.2 signifies hydrogen, methyl, NHCONH.sub.2 or NHCOCH.sub.3
- Z signifies a group --CH=CH.sub.2, --CH.sub.2 CH.sub.2 W or mixtures thereof wherein W is a leaving group removable by alkali, and --SO.sub.2 --Z may be bonded in a meta- or para- position with respect to the azo group with Cyanuric fluoride and thereafter reacting the reaction product with morpholine.
Dependencies are inferred from the claim text.